Trolley-wheel.



J. W. SWAIN. TROLLEY WHEEL.

APPLICATION FILED FEB. 16, I915.

HEET 1.

Apr. 2 SHEETS-8 Patented 1, w; SWA'IN. TROLLEY WHEEL. APPLICATION FILEDFEB. 16, I9l5.

Patented Apr. 11, 1916.

. 2 SHEETS-SHEET 2.

J'AMES W. SWAIN, F NORFOLK, VIRGINIA, ASSIGNOR OF ONE-I-IALF TOUVALTEIB, N. MARSHALL, OF NORFOLK, VIRGINIA. I

TROLLEY-WHEEL.

Specification of Letters Patent. Y Patented Apr. 11, 1916.

Application filed February 16, 1915. Serial No, 8,665.

To all whom it may concern:

I citizen of the United States, residing at Norfolk, in the county ofNorfolk and State of Virginia, have invented new and useful Improvementsin Trolley-Wheels, of which the following is a specification.

This invention relates to improvements in trolley wheels.

In carrying out my invention it is my purpose to provide a frame of castmetal orthe like which shall provide side members as well as the bearingfor a copper or similar conducting ring which contacts with the feedwire of a trolley system.

Another object of the invention is to provide a device of this characterwherein a conducting ring of comparatively soft material shall beremovably arranged upon and supported upon a substantially hardenedframe and rotatable upon the said frame, whereby worn rings orconducting members will be readily attached to or removed from thesupport.

Another object of the invention is to provide a device of this characterwhich shall obviate the necessity of entirely disposing with the trolleywheel when the copper or conducting portion thereof has been worn out.

lVith the above and other objects in view, the improvement resides inthe construction, combination and arrangement of parts set forth in thefollowing specification and falling within the scope of the appendedclaim.

In the drawings: Figure 1 is a side elevation of a trolley wheelconstructed in accordance with my invention, Fig. 2 is a similar viewlooking toward the opposite side of the wheel, Fig. 3 is a sectionalview approximately on the line 33 of Fig. 1, Fig. 4 is a sectional viewapproximately on the line 4-4 of Fig. 3, Fig. 5 is a perspective view ofone of the side or ring supporting members, Fig. 6 is a similar view ofthe co-acting side, and Fig.7 is a perspective view of the ring orconducting member.

Referring now to the drawings in detail, the numeral 1 designates myimproved trolley wheel in its entirety. The wheel includes two sidemembers indicated by the numerals 2 and 3 respectively. Each of themembers 2 and 3 is provided with a peripheral annular portion 4, and theinner edge of each of said portions 4 is beveled out;

wardly, as at 5, and also the inner faces of the said portions 4 arebeveled or inclined from their inner edges 5 toward their outer edge. Aplurality. of spokes 6 connect the annular flanges 4 with a central,preferably annular member'7. The spokes 6 of the side member 2extend-over the inner face of the annular member 7 thereof, and areprovided with fingers 9 which project' within the bore of said portion7. The portions projecting beyond the inner face of the member 7 of thesaid section 2 provide what I will term lugs 10, and the said members 7as well as each of the lugs 10 is provided with alining or registeringopenings 11.

The second or co-acting member 3 also has its spokes 6 extendinginwardly from its central portion 7, the said spokes being connectedwith the hub 11 which extends inwardly and centrally from the member 7.The outer end of the hub 11 is provided with a plurality of depressionsor slots 12 co-inciding in number and adapted to receive the fingers 9provided upon the spokes 10 of the member 2. The enlarged inner portionsof the spokes 6 of the member 3 extend laterally and longitudinally fromthe flange 7 terminating in straight shoulders 13 that are disposedapproximately at the terminals of the slots or grooves 12 and the saidshoulders 13 are provided with threaded openings 14 which co-incide withthe openings 10 in the spokes 6 of the member 2, while securing members,preferably in the nature of threaded elements 15 pass through theopenings 11 and within the threaded shoulders 13 and secure the sections2 and 3 in locked position.

The outer edges of the projecting or later- ..rrrc. I

ally extending portions of the spokes 6 of the member 3 are rounded toreceive the inner edge of a ring or annulus 16. This ring member 16 ispreferably constructed of copper and has its outer periphery formed withan annular depression 17, while its outer edges are preferably beveled,as at 18, to be snugly received by the angular portions 5 0f the flangesof the side members 2 and 3. One or both of the sides of the ring 16 isformed with one or more lugs or extensions 19 which are adapted tocontact with the spokes of one of the sides of the device to retain thesaid ring against rotation, or in other words to cause the said ring 16to rotate with the removable sides therefor. The hub of the section 3 isprovided with a cylindrical bore which may have, and preferably has,acopper lining 20, which provides a bearing for the bolt or shaft whichpasses through the arms in the bifurcated end or harp of the trolleypole.

' From'the above description, taken in connection with the accompanyingdrawings, the simplicity of the device, as well as the advantagesthereof will, it is thought, be perfectly apparent to those skilled inthe art to which such invention appertains without further detaileddescription.

Having thus described the invention, what I claim is:

In a trolley wheel, a cylindrical hub provided with slots in itsperiphery, a pair of side members, including spokes and enlarged attheir inner extremities, the enlargements of the spokes of one memberbeing secured to said hub while the enlargements of the spokes of theopposite side member are provided with tongues that enter the hub slots,a grooved ring frictionally held between said members and having itsinner surface resting on the enlargements of said spokes, and screwssecuring the enlargements of the spokes of one member to theenlargements of the spokes of the opposite member.

In testimony whereof I hereto aflix my signature in presence of twowitnesses.

JAMES WV. SWAIN. Witnesses:

F. P. MARTELL, J. W. WATTS, Jr.

Copies of this pgte it may be obtained for five cents each, byaddressing the Commissioner of ll'atemts. Washington, 20. B.

